It's a process lens. Grrrrr...reat! at 1:1, merely excellent at infinity.
graywolf
http://www.graywolfphoto.com
"Idiot Proof" <==> "Expert Proof"
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David Oswald wrote:
Bob Shell wrote:
Offered for your amusement without comment:
http://cgi.ebay.com/This-480mm-Ronar-is-Opening-up-a-Can-of-Whoopass-0_W0QQitemZ7569629447
f/9 to f/260 huh?
According to the sunny-16 rule (if my calculations are anywhere near
accurate), that means at ISO-100, f/260, you would need to use a
shutter speed of two seconds. At ISO-400 you might get away with 1/2
second. ...at 3200, 1/16th. ...all in bright sunlight. Of course your
depth of field would probably be from two feet behind the camera,
extending all the way to the moon. ;) (that calculation is in jest,
of course)
